“Hands-free” pointing techniques used in mid-air gesture
interaction require precise motor control and dexterity. Although
being applied in a growing number of interaction contexts over the
past few years, this input method can be challenging for older users
(60+ years old) who experience natural decline in pointing abilities
due to natural ageing process. We report the findings of a target
acquisition experiment in which older adults had to perform “pointand-
select” gestures in mid-air. The experiment investigated the
effect of 6 feedback conditions on pointing and selection
performance of older users. Our findings suggest that the bimodal
combination of Visual and Audio feedback lead to faster target
selection times for older adults, but did not lead to making less
errors. Furthermore, target location on screen was found to play a
more important role in both selection time and accuracy of pointand-
select tasks than feedback type
